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TUSB9261: TUSB9261 does not work with TUSB7340

Part Number: TUSB9261
Other Parts Discussed in Thread: TUSB7340,

We have TI evaluation boards for both the TUSB7340 and the TUSB9261. Using the linux flashburner code we are able to program the TUSB9261 off of the USB ports built into a PC and once done access SATA drives without issue, but once we try programming it through the TUSB7340 evaluation board the programming does not occur.

The PC is running linux (debian 8).

The kernel module and application software have not been recompiled between environments.

The flashburner software reports everything as having run successfully.

Using an oscilloscope activity can be seen on the USB bus at all relevant points in the programming procedure.

lsusb continues to show 0451:926b as the connected device, whereas when it successfully programs this updates to 0451:9261

The heartbeat LED does not start flashing.

This is also seen on a custom board of ours where these 2 devices are daisychained.

The flashburner software was provided through this forum within about 2 weeks ago, and is programming into RAM.

It makes no difference if we use a USB2 or USB3 cable, the symptoms remain the same

Other devices continue to work on TUSB7340 before, during, and after.

How can we get these 2 devices to work together?